Marasmiellus scandens (Massee) Dennis & D.A. Reid

Zhang, Shiyu, Tibpromma, Saowaluck, Karunarathna, Samantha C., Zhao, Gaojuan, Mapook, Ausana & Xu, Jianchu, 2023, Taxonomy, phylogeny, and successful cultivation of Marasmiellus scandens (Basidiomycota) associated with Aquilaria sinensis (agarwood tree) in China, Phytotaxa 616 (1), pp. 60-68 : 63-64

Marasmiellus scandens (Massee) Dennis & D.A. Reid , Fig. 2

Index Fungorum number: 300136

Pileus 5–15 mm diam., circular to convex; surface slightly wrinkled, glabrous, thin- membranaceous light brown (7D6). Context thick, light brown (7D6) (concolorous with pileus). Lamellae adnate, subdistant with 1–2 series of lamellulae, thin- membranaceous, light brown (7D6). Stipe 15–25 × 0.5–0.75 mm, terete, equal, enlarged at base, curved, insititious, pruinose, tough, dull, dry, light brown (7D6) to brown (5F6) ( Fig.2‒B, C ).

Basidiospores 8.8–11.5 × 1.8–4.5 µm, lacrimoid, smooth, hyaline, thin-walled ( Fig.2D ) Basidia not seen. Cheilocystidia abundant, 22.8–28.6×4.6–6.7 µm, clavate to broadly clavate, hyaline, thin-walled ( Fig.2F ). Pileipellis of long and thin, thin-walled, hyaline, up to 26–30 μm wide and coralloid hyphae. Clamp connections present ( Fig. 2E ).

Culture characteristics: Colonies growing on PDA, reaching 8 cm diam after two weeks at 25 oC, circular, cottony, white, flossy, velvety, flat elevation, without pigments produced in PDA.

Material examined: CHINA, Guangxi Province, Pubei , isolated as an endophytic fungus from healthy living stem of Aquilaria sinensis , 22 November 2020, Shiyu Zhang, GX-6-1 (HKAS-124582), living culture KUNCC22- 12451 .

Figures

FIGURE 2. Marasmiellus scandens (HKAS-124582).A Culture on PDA.B, C Basidioma obtained from the cultivation.D Basidiospores. E Pileipellis with a clamp connection. F Cheilocystidia. Scale bars: D = 6 μm, E = 6 μm, F = 5 μm. E, F stained with Congo red.